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NTIS 바로가기한국농림기상학회지 = Korean Journal of Agricultural and Forest Meteorology, v.16 no.4, 2014년, pp.285 - 296
김길남 (국립산림과학원 산림유전자원부) , 한심희 (국립산림과학원 산림유전자원부) , 박관수 (충남대학교 산림자원학과)
The impacts of high temperature and drought were studied on the seedlings of three families (superiorgangwon74, intermediate-gangwon77 and inferior-gangwon132) of P. densiflora which had been selected by the based on the growth indexes of 32-year-old. The seedlings were grown in controlled-environme...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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식물의 생산성을 제한하는 중요한 스트레스 요인은? | 여러 가지 환경 스트레스는 식물의 생장, 대사, 생산성에 심각한 영향을 미치는데, 고온, 저온, 건조 및 오염물질 등은 식물의 생산성을 제한하는 중요한 스트레스 요인이다(Lawlor, 2002). 최근 기후변화로 인한 기온과 강수량 변화에 따라 식물의 생장패턴이 변화될 것으로 예측되고 있기 때문에 기후변화에 의한 식물의 생장 및 생리적 특성 변화를 연구하는 것이 필요하다(Wu et al. | |
생장 및 생리적 반응에 따라서 수종간 혹은 클론간 온도 및 수분 스트레스에 대하여 민감성을 판단할 수 있는 이유는? | 식물은 온도 및 수분스트레스에 대응하기 위하여 직접적인 내성 기작과, 온도 증가나 감소 및 수분 부족으로 인해 나타날 수 있는 간접적인 피해에 대한 대응 기작을 갖고 있다. 이러한 능력은 식물의 양적 형질로써 온도 및 수분 스트레스에 대한 회피 혹은 내성 기작은 대부분의 식물들이 갖고 있지만, 종간 혹은 종내에서 유전형질에 따라 다양한 차이가 있다(Oh, 2010). 따라서 생장 및 생리적 반응에 따라서 수종간 혹은 클론간 온도 및 수분 스트레스에 대하여 민감성을 판단할 수 있다. | |
소나무란? | 소나무는 우리나라의 다양한 토양과 환경 조건에 잘 적응한 주요 산림수종의 하나로 해발 1,000m 이상까지 생육하는 향토수종이다. 우리나라 전체 산림 중 침엽수림이 약 250만ha 이고 이중 천연 소나무림이 약 1,447천ha로 전체 임분의 22. |
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